CN213632445U

CN213632445U - Anti-corrosion thermocouple

Info

Publication number: CN213632445U
Application number: CN202023292740.7U
Authority: CN
Inventors: 何华平; 何兆龙
Original assignee: Jiangsu Zhaolong Electric Co ltd
Current assignee: Jiangsu Zhaolong Electric Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-07-06
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses an anticorrosion thermocouple, including terminal box, L type protection tube, protection tube fixed plate, mounting flange, sleeve, flexible motor, bevel gear one, bevel gear two, mount, transmission shaft one, driving medium one, lead screw, inner protection tube, slider, rectangular hole, transmission shaft two, winding roll. The utility model discloses a thermal couple, the thermal couple is the shrink state before the work, installation back during operation flexible motor drives the lead screw and rotates, the lead screw becomes threaded connection with the slider, the slider can drive the inner protection tube through the rectangular hole along slider rectilinear motion when the lead screw rotates and stretch out and draw back, drive bevel gear when the lead screw rotates and rotate, bevel gear one rotates with bevel gear two gear cooperation bevel gears, it rotates to move the winding roller through the combination drive belt, the wire of thermocouple is initial twines the round on the winding roller, during operation inner protection tube upward movement, the winding roller twines the wire on the winding roller, during inner protection tube downward movement, the winding roller loosens the wire.

Description

Anti-corrosion thermocouple

Technical Field

The utility model relates to a thermocouple design and manufacturing technical field, in particular to anticorrosion thermocouple.

Background

The thermocouple is a commonly used temperature measuring element in a temperature measuring instrument, directly measures temperature, converts a temperature signal into a thermal electromotive force signal, and converts the thermal electromotive force signal into the temperature of a measured medium through an electric instrument. The thermocouple has a wide application range in the industrial field, and has various structural forms according to different application environments. In industrial production, a plurality of places need to measure temperature, some working environments are in an atmosphere generating corrosive gas or liquid, the installation space is small, and a thermocouple used as a temperature measuring device needs to have strong anti-corrosion performance; in addition, the problem of thermocouple installation in a narrow or limited space is also considered.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, it is an object of the present invention to provide an anti-corrosion thermocouple that can be installed and fixed in a narrow space and has excellent anti-corrosion performance.

In order to achieve the purpose of the utility model, the utility model discloses an anticorrosion thermocouple, it includes: the device comprises a junction box, an L-shaped protection tube, a protection tube fixing plate, a fixing flange, a sleeve, a telescopic motor, a bevel gear I, a bevel gear II, a fixing frame, a transmission shaft I, a transmission part I, a screw rod, an inner protection tube, a sliding block, a rectangular hole, a transmission shaft II and a winding roller; the first bevel gear is fixedly arranged on the screw rod, one end of the sliding block is fixedly arranged on the inner protection tube, a threaded hole is formed in the other end of the sliding block and is in threaded connection with the screw rod, the sliding block is in sliding connection with the rectangular hole, and the inner protection tube is in sliding connection with the inner wall of the short end of the L-shaped protection tube; the terminal box is fixedly provided with the end part of the long end of the L-shaped protection tube, the protection tube fixing plate is fixedly arranged on the long end of the L-shaped protection tube, the fixing flange is fixedly arranged at the joint of the long end and the short end of the L-shaped protection tube and is vertical to the short end, one end of the sleeve is fixedly arranged on one side of the fixing flange, the other end of the sleeve is fixedly arranged on the short end of the L-shaped protection tube, the telescopic motor is fixedly arranged on the fixing flange, the bevel gear II is fixedly arranged at one end of the transmission shaft I and is matched with the bevel gear I, the fixing frame is fixedly arranged on the inner wall of the sleeve, the transmission shaft I is rotatably arranged on the fixing frame, the other end of the transmission shaft I is provided with three holes which are distributed in a circumference, the transmission members I are three, one end of each transmission member, the rectangular hole is served at the short end of L type protection tube, transmission shaft two has two, two both ends of two transmission shafts are all opened three holes and are become the circumference and distribute, the other end of three driving medium one is slidable mounting respectively in the three hole of two one ends of one of them transmission shaft, driving medium two has threely, the one end of three driving medium two is slidable mounting respectively at the other end of one of them transmission shaft two, the other end of three driving medium two is slidable mounting respectively in the one end of another transmission shaft two, the winding roll rotates and installs on the short end of L type protection tube, the one end of winding roll has three hole to become the circumference and distributes, the other end rotation of winding roll is installed on telescopic inner wall, three holes and the two other end three holes of another transmission shaft of winding roll one end are.

Furthermore, corrosion-resistant coatings are added to the junction box, the L-shaped protection tube, the protection tube fixing plate, the fixing flange, the sleeve, the bevel gear I, the bevel gear II, the fixing frame, the transmission shaft I, the transmission part I, the lead screw, the inner protection tube, the sliding block, the rectangular hole, the transmission shaft II and the winding roller.

Furthermore, a sealing layer is arranged between the inner protection tube and the inner wall of the short end of the L-shaped protection tube.

Furthermore, a thermocouple fixing frame is arranged at the bottom in the inner protection tube.

Furthermore, five threaded holes are formed in the fixing flange and are distributed in a circumferential mode.

Furthermore, eight threaded holes are symmetrically distributed on the protection tube fixing plate.

Compared with the prior art, the utility model beneficial effect be: (1) compared with the prior art, the utility model further reduces the installation thickness of the thermocouple; (2) the utility model can extend and retract the temperature measuring head to facilitate installation and measurement; (3) the utility model discloses it can work in corrosive environment more effectively to have added anticorrosive coating.

Drawings

FIG. 1 is a schematic view of the overall structure of an anti-corrosion thermocouple of the present invention;

FIG. 2 is a schematic view of the telescopic structure of the anti-corrosion thermocouple of the present invention;

fig. 3 is a schematic view showing a telescopic structure of the anti-corrosion thermocouple according to the present invention.

Element names and designations in the drawings: 1-a junction box; 2-L type protection tube; 3-protecting the tube fixing plate; 4-fixing a flange; 5-a sleeve; 6-a telescopic motor; 7-bevel gear one; 8-bevel gear two; 9-a fixing frame; 10-a first transmission shaft; 11-a transmission member one; 12-a lead screw; 13-inner protective tube; 14-a slide block; 15-rectangular holes; 16-a transmission shaft II; 17-a winding roll; 18-transmission piece two.

Detailed Description

The present invention will be further described with reference to specific embodiments, illustrative embodiments and description of which are provided herein to explain the present invention, but not to limit the present invention.

Referring to fig. 1, fig. 2 and fig. 3, the structure of an anti-corrosion thermocouple according to an embodiment of the present invention is schematically illustrated, which includes: the wire winding device comprises a junction box 1, an L-shaped protection tube 2, a protection tube fixing plate 3, a fixing flange 4, a sleeve 5, a telescopic motor 6, a bevel gear I7, a bevel gear II 8, a fixing frame 9, a transmission shaft I10, a transmission part I11, a lead screw 12, an inner protection tube 13, a sliding block 14, a rectangular hole 15, a transmission shaft II 16 and a wire winding roller 17.

The first bevel gear 7 is fixedly installed on the screw rod 12, one end of the sliding block 14 is fixedly installed on the inner protection tube 13, a threaded hole in the other end of the sliding block 14 is in threaded connection with the screw rod 12, the sliding block 14 is in sliding connection with the rectangular hole 15, and the inner protection tube 13 is in sliding connection with the inner wall of the short end of the L-shaped protection tube 2.

The terminal box 1 is fixedly provided with the end part of the long end of the L-shaped protection tube 2, the protection tube fixing plate 3 is fixedly arranged on the long end of the L-shaped protection tube 2, the fixing flange 4 is fixedly arranged at the joint of the long end and the short end of the L-shaped protection tube 2 and is vertical to the short end, one end of the sleeve 5 is fixedly arranged on one side of the fixing flange 4, the other end of the sleeve 5 is fixedly arranged on the short end of the L-shaped protection tube 2, the telescopic motor 6 is fixedly arranged on the fixing flange 4, the bevel gear II 8 is fixedly arranged at one end of the transmission shaft I10 and is in gear fit with the bevel gear I7, the fixing frame 9 is fixedly arranged on the inner wall of the sleeve 5, the transmission shaft I10 is rotatably arranged on the fixing frame 9, three holes are formed in the other end of the transmission shaft I10, the transmission members I11 are three, one ends of the, the other end of the screw 12 is rotatably arranged at the bottom end of the inner side of the sleeve 5, the rectangular hole 15 is arranged at the short end of the L-shaped protection tube 2, two transmission shafts II 16 are provided, three holes are formed at the two ends of the two transmission shafts II 16 and are distributed in a circumferential manner, the other ends of the three transmission members I11 are respectively and slidably arranged in the three holes at one end of one of the transmission shafts II 16, the number of the second transmission members 18 is three, one end of each of the second transmission members 18 is slidably mounted at the other end of one of the second transmission shafts 16, the other end of each of the second transmission members 18 is slidably mounted at one end of the other of the second transmission shafts 16, the winding roll 17 is rotatably mounted at the short end of the L-shaped protection tube 2, three holes are formed in one end of the winding roll 17 and distributed circumferentially, the other end of the winding roll 17 is rotatably mounted on the inner wall of the sleeve 5, and the three holes in one end of the winding roll 17 are connected with the three holes in the other end of the other of the second transmission shafts 16.

The terminal box 1, the L-shaped protection tube 2, the protection tube fixing plate 3, the fixing flange 4, the sleeve 5, the bevel gear I7, the bevel gear II 8, the fixing frame 9, the transmission shaft I10, the transmission part I11, the lead screw 12, the inner protection tube 13, the sliding block 14, the rectangular hole 15, the transmission shaft II 16 and the winding roll 17 are all added with corrosion-resistant coatings.

A sealing layer is arranged between the inner protection tube 13 and the inner wall of the short end of the L-shaped protection tube 2. The bottom in the inner protection tube 13 is provided with a thermocouple fixing frame. Five threaded holes are circumferentially distributed on the fixing flange 4. Eight threaded holes are symmetrically distributed on the protection tube fixing plate 3.

The utility model discloses a theory of operation of anticorrosion thermocouple does: the thermocouple is fixed on the tested equipment through the protection tube fixing plate 3, the fixing flange 4 is a connecting piece for reinforcing a thermocouple connecting port and can strengthen the sealing performance of the connecting part, the thermocouple is in a contraction state before working, the telescopic motor 6 drives the screw rod 12 to rotate during working after installation, the screw rod 12 is in threaded connection with the sliding block 14, the sliding block 14 can drive the inner protection tube 13 to expand and contract along the linear motion of the sliding block 14 through the rectangular hole 15 when the screw rod 12 rotates, the screw rod 12 drives the bevel gear I7 to rotate when rotating, the bevel gear I7 and the bevel gear II 8 form a gear matched with the bevel gear II 8 to rotate, the winding roll 17 is driven to rotate through the combined transmission of the transmission shaft I10, the transmission part I11, the transmission shaft II 16 and the transmission part II 18, the lead of the thermocouple is initially wound on the winding roll 17 for one circle, when the inner protection, when the inner protective tube 13 moves downward, the wire is unwound by the winding roller 17.

The anti-corrosion thermocouple of the utility model further reduces the installation thickness of the thermocouple; the temperature measuring head can be stretched to facilitate installation and measurement; the addition of the anti-corrosion coating can work more effectively in a corrosive environment.

The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.

Claims

1. An anti-corrosion thermocouple, said thermocouple comprising: the device comprises a junction box, an L-shaped protection tube, a protection tube fixing plate, a fixing flange, a sleeve, a telescopic motor, a bevel gear I, a bevel gear II, a fixing frame, a transmission shaft I, a transmission part I, a screw rod, an inner protection tube, a sliding block, a rectangular hole, a transmission shaft II and a winding roller; the first bevel gear is fixedly arranged on the screw rod, one end of the sliding block is fixedly arranged on the inner protection tube, a threaded hole is formed in the other end of the sliding block and is in threaded connection with the screw rod, the sliding block is in sliding connection with the rectangular hole, and the inner protection tube is in sliding connection with the inner wall of the short end of the L-shaped protection tube; the terminal box is fixedly provided with the end part of the long end of the L-shaped protection tube, the protection tube fixing plate is fixedly arranged on the long end of the L-shaped protection tube, the fixing flange is fixedly arranged at the joint of the long end and the short end of the L-shaped protection tube and is vertical to the short end, one end of the sleeve is fixedly arranged on one side of the fixing flange, the other end of the sleeve is fixedly arranged on the short end of the L-shaped protection tube, the telescopic motor is fixedly arranged on the fixing flange, the bevel gear II is fixedly arranged at one end of the transmission shaft I and is matched with the bevel gear I, the fixing frame is fixedly arranged on the inner wall of the sleeve, the transmission shaft I is rotatably arranged on the fixing frame, the other end of the transmission shaft I is provided with three holes which are distributed in a circumference, the transmission members I are three, one end of each transmission member, the rectangular hole is served at the short end of L type protection tube, transmission shaft two has two, two both ends of two transmission shafts are all opened three holes and are become the circumference and distribute, the other end of three driving medium one is slidable mounting respectively in the three hole of two one ends of one of them transmission shaft, driving medium two has threely, the one end of three driving medium two is slidable mounting respectively at the other end of one of them transmission shaft two, the other end of three driving medium two is slidable mounting respectively in the one end of another transmission shaft two, the winding roll rotates and installs on the short end of L type protection tube, the one end of winding roll has three hole to become the circumference and distributes, the other end rotation of winding roll is installed on telescopic inner wall, three holes and the two other end three holes of another transmission shaft of winding roll one end are.

2. A corrosion-resistant thermocouple according to claim 1, wherein: and the junction box, the L-shaped protection tube, the protection tube fixing plate, the fixing flange, the sleeve, the bevel gear I, the bevel gear II, the fixing frame, the transmission shaft I, the transmission part I, the screw rod, the inner protection tube, the sliding block, the rectangular hole, the transmission shaft II and the winding roll are all added with corrosion-resistant coatings.

3. A corrosion-resistant thermocouple according to claim 2, wherein: and a sealing layer is arranged between the inner protection tube and the inner wall of the short end of the L-shaped protection tube.

4. A corrosion-resistant thermocouple according to claim 3, wherein: the bottom in the inner protection tube is provided with a thermocouple fixing frame.

5. An anti-corrosion thermocouple according to claim 4, characterised in that: five threaded holes are circumferentially distributed on the fixing flange.

6. An anti-corrosion thermocouple according to claim 5, characterised in that: eight threaded holes are symmetrically distributed on the protection tube fixing plate.